Pokémon Ultimate Journeys

A distressed mother enlists Ash and friends to find the true identity of a mysterious Pokémon Coordinator she believes is leading her son astray. When they realize, however, that her son is in fact this very coordinator, hiding behind a mask only because his mother refuses to understand his love for Pokémon, these young Pokémon trainers must abandon their original mission and help this eager Pokémon Coordinator attain his goal of entering a local Pokémon contest against his mother's wishes.